Thread (10 messages) 10 messages, 4 authors, 2026-01-08
STALE174d
Revisions (3)
  1. v1 [diff vs current]
  2. v2 current
  3. v3 [diff vs current]

[PATCH v2 0/4] PCI: tegra: A couple of cleanups

From: Anand Moon <hidden>
Date: 2025-12-15 14:16:13
Also in: linux-pci, linux-tegra, lkml

Hi All,

This small series provides two cleanup patches for the Tegra PCIe driver.
The overall goal is to replace custom, open-coded logic with standard
kernel helper functions.

These changes improve the driver's readability and maintainability by
everaging modern, well-tested APIs for clock management and register
polling.

v2: Fix the DT binding for nvidia,tegra-pcie.yaml
    switch back to devm_clk_bulk_get_all to get all the clocks
    improve the commit message.

v1 Added new devicetree binding nvidia,tegra-pcie.yaml file.
   Switch from devm_clk_bulk_get_all() -> devm_clk_bulk_get() api.
   Fixed checkpatch warnings.

Tested on Jetson Nano 4 GB ram.

jetson-nano:~$ lspci -tvv
-[0000:00]-+-01.0-[01]----00.0  Intel Corporation Wireless 8265 / 8275
           \-02.0-[02]----00.0  Realtek Semiconductor Co., Ltd. RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller

v1:   https://lore.kernel.org/linux-tegra/20250926072905.126737-1-linux.amoon@gmail.com/ (local)
RFC : https://lore.kernel.org/linux-tegra/20250831190055.7952-2-linux.amoon@gmail.com/ (local)

Thanks
-Anand

Anand Moon (4):
  dt-bindings: PCI: Convert nvidia,tegra-pcie to DT schema
  PCI: tegra: Simplify clock handling by using clk_bulk*() functions
  PCI: tegra: Use readl_poll_timeout() for link status polling
  PCI: tegra: Use BIT() and GENMASK() macros for register definitions

 .../bindings/pci/nvidia,tegra-pcie.yaml       | 380 ++++++++++
 .../bindings/pci/nvidia,tegra20-pcie.txt      | 670 ------------------
 drivers/pci/controller/pci-tegra.c            | 237 +++----
 3 files changed, 471 insertions(+), 816 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/pci/nvidia,tegra-pcie.yaml
 delete mode 100644 Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt


base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8
-- 
2.50.1
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